Dorofeev, G <br/><br/>
Elementary mathematics 
 selected topics and problem solving 

 - Moscow  Mir Publishers  1973 
 - 488p. ; ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MATHEMATICS -- STUDY AND TEACHING (ELEMENTARY)<br/>MATHEMATICS--HANDBOOKS, MANUALS, ETC
<br/><br/><label>LC Class. No.: </label>QA 43 Dor